Struct kas_widgets::edit::StringGuard

pub struct StringGuard<A> { /* private fields */ }

An EditGuard for read-only strings

This may be used with read-only edit fields, essentially resulting in a fancier version of Text or ScrollText.

Implementations

impl<A> StringGuard<A>

pub fn new(value_fn: impl Fn(&A) -> String + 'static) -> Self

Construct with a value function

On update, value_fn is used to extract a value from input data. If, however, the input field has focus, the update is ignored.

No other action happens unless Self::with_msg is used.

pub fn with(self, f: impl Fn(&mut EventCx<'_>, &A, &str) + 'static) -> Self

Call the handler f on activation / focus loss

On field activation and focus loss (AFL) after an edit, f is called.

pub fn with_msg<M: Debug + 'static>( self, f: impl Fn(&str) -> M + 'static ) -> Self

Send the message generated by f on activation / focus loss

On field activation and focus loss (AFL) after an edit, f is used to construct a message to be emitted via EventCx::push.

Trait Implementations

impl<A> Debug for StringGuard<A>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<A> EditGuard for StringGuard<A>

type Data = A

Data type

fn focus_lost(edit: &mut EditField<Self>, cx: &mut EventCx<'_>, data: &A)

Focus-lost guard

fn update(edit: &mut EditField<Self>, cx: &mut ConfigCx<'_>, data: &A)

Update guard

fn edit(edit: &mut EditField<Self>, _: &mut EventCx<'_>, _: &Self::Data)

Edit guard

fn configure(edit: &mut EditField<Self>, cx: &mut ConfigCx<'_>)

Configure guard

fn activate( edit: &mut EditField<Self>, cx: &mut EventCx<'_>, data: &Self::Data ) -> IsUsed

Activation guard

fn focus_gained( edit: &mut EditField<Self>, cx: &mut EventCx<'_>, data: &Self::Data )

Focus-gained guard